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Microfiltración apical entre dos cementos de obturación: biocerámico y resinoso en premolares unirradiculares preparadas con protaper, y obturadas con condensación lateral / Apical microfiltration between two filling cements: bioceramic and resinous in unirradicular premolars prepared with protaper and sealed with lateral condensation
Fajardo Loaiza, Cristina Katerine; Martini García, Isadora; Mena Silva, Paola Andrea; Guillén Guillén, Raquel Esmeralda.
  • Fajardo Loaiza, Cristina Katerine; Universidad Central del Ecuador. EC
  • Martini García, Isadora; Universidade Federal do Rio Grande do Sul. BR
  • Mena Silva, Paola Andrea; Universidad Central del Ecuador. EC
  • Guillén Guillén, Raquel Esmeralda; Universidad Central del Ecuador. EC
Odontol. vital ; (31): 37-44, jul.-dic. 2019. tab, graf
Article in Spanish | LILACS, BBO | ID: biblio-1091426
RESUMEN
Resumen

Objetivo:

Comparar in vitro la microfiltración apical en premolares unirradiculares obturados con cemento a base de resina epóxica y cemento biocerámico.

Método:

40 piezas dentales unirradiculares fueron seleccionadas y divididas en dos grupos para ser obturadas esperando el tiempo de fraguado de acuerdo con las instrucciones del fabricante. El grupo A se obturó con cemento biocerámico Endosequence y, el grupo B, con cemento a base de resina epóxica AH-Plus posteriormente los dos grupos fueron sellados con barniz de uñas hasta 3mm de la parte apical, luego se colocaron las muestras en la incubadora a 37ºC. Ambos fueron sometidos a 750 ciclos de termociclado, para reproducir el ambiente parecido a la cavidad oral. Para análisis de microfiltración se utilizó el método de difusión del colorante, se sumergieron en azul de metileno al 2 % por 6 días, posteriormente los especímenes fueron sometidos en una bomba de vacío. Los dientes fueron cortados longitudinalmente para ser evaluadas mediante el estereomicroscopio. El análisis estadístico fue hecho mediante T-Student y Chi-Cuadrado.

Resultados:

El grupo A corresponde a Endosequence obtuvo una medida de 0,55mm y el grupo B corresponde a AH-Plus 1,20mm con un estimado de significancia de p=0,013.

Conclusión:

El análisis de ambos cementos de obturación demostró que Endosequence posee menor microfiltración apical que AH-Plus.
ABSTRACT
Abstract

Aim:

To compare in vitro by the stereomiscroscope the lesser apical microfiltration in uniradicular premolars, between the cement based on Epoxy Resin and Bioceramic cement.

Method:

The study was performed on 40 uniradicular dental pieces divided into two groups, the samples were prepared using the protaper system and the obturation was performed using the lateral condensation technique, the first group was sealed withEndosequence bioceramic cement and the second group with Cement based on AH-Plus epoxy resin, then sealed with nail varnish up to 3mm from the apical part, then the samples were placed in the incubator at 37ºC, waiting for the set time corresponding to each group according to the manufacturer's instructions . The two groups of the present study were submitted to 750 cycles of thermocycling, to provide an environment similar to the oral cavity, then longitudinal cuts were made to the samples. The microfiltration was evaluated using the dye diffusion method, immersed in 2% methylene blue for 6 days, then the specimens were subjected to a vacuum pump. The teeth were cut longitudinally to be evaluated by the stereomicroscope. The statistical analysis was through T-Student and Chi-Square.

Results:

Group A corresponds to Endosequence obtained a mean of 0,55mm and Group B corresponds to AH-Plus 1,20mm with an estimated significance of p = 0,013.

Conclusion:

Both obturation cements have significant differences, therefore Endosequence has less apical microfiltration than AHPlus.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Root Canal Obturation / Bicuspid / Microstraining / Ceramics / Thermal Gradient / Epoxy Resins / Methylene Blue Language: Spanish Journal: Odontol. vital Journal subject: Odontologia Year: 2019 Type: Article Affiliation country: Brazil / Ecuador Institution/Affiliation country: Universidad Central del Ecuador/EC / Universidade Federal do Rio Grande do Sul/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Obturation / Bicuspid / Microstraining / Ceramics / Thermal Gradient / Epoxy Resins / Methylene Blue Language: Spanish Journal: Odontol. vital Journal subject: Odontologia Year: 2019 Type: Article Affiliation country: Brazil / Ecuador Institution/Affiliation country: Universidad Central del Ecuador/EC / Universidade Federal do Rio Grande do Sul/BR